This grave marks the final resting place of pioneer John Chapman, better known as Johnny Appleseed.

An unknown number of cholera victims are buried in two nondescript graves.

This turn of the century jail once held Charles Manson.

Historians and hobbyists head to this former French outpost for the annual Feast of the Hunters' Moon.

The large rock formation where the Shawnee prophet Tenskwatawa stood and encouraged his warriors during the Battle of Tippecanoe.

The farm where one of America's greatest leaders was raised is now a well-appointed landmark.

A chilling disappearance (and rescue) of a child uncovers a geological mystery.

This unassuming home was once “grand central station” for the Underground Railroad.

Locals dubbed this abandoned abode the "gingerbread house" because of its odd architecture.

The body of one of the world's most famous outlaws is covered in cement and iron to prevent it from being stolen.

A medical facility that has been kept frozen in time.

The longest navigable underground river in the United States is home to countless blind and albino animals.

A hidden network of subterranean passageways lies tangled beneath Indianapolis' bustling City Market.

A curiosity-seeker's paradise set inside a three-story historic school house.

Kentucky's anomalous peninsula projecting into the Mississippi River, site of legendary earthquakes and local feuds.

The largest cemetery in Louisville is the final resting place of Col. Sanders and Muhammad Ali.

A former 19th-century tavern, famous for its peach brandy and honey concoction.

Kentucky's longest operating jail is now a spooky spot to spend the night.

Origin of the blue-skinned Fugates of eastern Kentucky.

This boulder stays on its mountain thanks to a huge chain and on the map due to local legend.

You can climb to the summit of Black Mountain, as long as you sign the waiver.

This grave marks the final resting place of a legendary frontiersman... unless it doesn't.

The only building in Louisville (hopefully) that contains two ancient holy skeletons.

This abandoned cemetery has a dark past of bodies buried over bodies.